Circuit closer



Feb. 16 ,1926. 1,573,102

J. J. GRAMMA CIRCUIT CLOSER Filed Jan. 1'7, 1921 l INVENTOR ATTORNEY FFICE.

JAMES JOSEPH G51-ANIMA, 0F NEVI YORK, N. Y.

CIRCUIT CLOSER.

Application filed January l?, 1921. Serial No. 432860.

To all 107mm it may concern.' pintles or dowels 1Q which embrace the Be it known that l, JAMES Josnrrr GRAM- trames 1st and travel thereon as on a track. MA, a citizen oit the United States, residing A similar plate 2O is similarly mounted on at New York city, in the county of New the opposite side ot plate 15, and short rods 5 York and State ot N ew York, have inafented 21 piercing member 15 rigidly secure mem- 60 new and useful improvements in Circuit bers 18 and 2O to move together. A boss 22 Closers, oir' which the followingV is a speciis formed on the rear portion o'l' plate 17 and lication. to this boss is pivoted a pair of hooks 23 This invention relates to improvements having rearwardly projecting cam faces 211. l0 in circuit closers for automobiles for autolllhen plate 18 is tui y rearward, hooks 23 65 matically indicating when it is attempted to are pulled up by a spring' 25 until they catch steal the car. on rod 17 and prevent return movement of One of the principal objects is to provide member 18. Springs 26 tend constantly to a device oit this kind with means which may return members 18 and 2O to normal pobe set so thatupon operation ot the driving sition. i0 shaft7 the alarm will be automatically set in- A rod or bar 27 is rotatably mounted in to operation. the liront wall et bon 10 and in the plate 16 Another object is 'to provide novel means and carries at its rear end a disk 28 provided tor setting the mechanism. with one or more torwardly proj ecting pins 20 Another object is to provide novel means 29. A pin receiving collar 30 is secured to tor preventing operation or the alarm when the wall 1G concentric with rod 27 and is the machine is in normal operation. provided with a number ot pin receiving `With these and other objects in view holes 31. These holes 31 are arranged very which will be more apparent as the speciclose to each other as shown in Figure 3, e):-

tication proceeds, the invention resides in ce it at 82 where a small space is flat. The 80 certain construction and combination and tree ends ot pins 29 are pointed so as to arrangement of parts, the essential features slide into holes 31 unless seated directly or' which are hereinafter tully described, paragainst the portions 82. i ticularly pointed out in the claim, and illus- A collar is mounted on rod 27 and be- 30 trated in the accompanying,` drawing, in tween this collar and the plate 1G is a spring S5 which 34.- which tends constantly to torce rod 21 Figure 1 is a top plan view ot my imtoward the front ot the box.

proved alarm with the cover removed. Rod 27 carries at its front end a knob or Figure 2 is a vertical sectional view subhandle 35 by means of which said rod may stantially on line 2 2 of Figure 1. be turned. The rod is also provided with 90 .Figure 3 is a detail view of the pin-receivslot 86 in which is slidably mounted an indiinir block. eating linger 37 which is pressed constantly Like characters ot reference refer to like against a dial plate 88 by a spring- 39. This parts in all views. dial plate is marked oli with graduations 40 Referring to the drawing in detail, 10 repand the owner knows at which one ot these 95 resents a main casing` or framework which the linger o( must stand to indicate that pins is preferably in the form of a box through 25) are resting on portions 82. which a shaft 11 passes. rllhis shaft may be An auxiliary casing #l0 encloses the head either the main drive shaft of the machine 35 and adjacent parts and is closed by 'a or may be a shaft geared thereto and driven door lil provided with a suitable fastening` 100 thereby in the direction ot the arrow. device. Mounted on shaft 11 is a sleeve 12 having rwo batteries are shown at i3 and 111. a cam portion 13. A wire connects one terminal of battery Secured to the inside ot the box 10 is a si?) with one oitl the binding posts ot an pair of traine members 11i which are secured alarm bell 4.6, and a wire L7 connects the 105 to the trent and bottom of the box and oxopposite pole of battery 411 with the retend rearwardly nearly to shaft 11. rlhese mailling binding post of bell 46. trames have rigidly 'secured between them fr Contact strip 48 is mounted on the statwo cross plates 15 and 16 and a rod 17. tionary trame member 15 and is connected A plate 18 is provided at its ends with by a wire 49 with the opposite pole of bat- 110 Cir tery Liet from that to which Wire L17 connects. Arranged facingl Contact strip 18 is a oontaet strip 50 secured to and movable with the member 18, and connected by a Wire 51 with the opposite terminal of battery t3 from that to which Wire 15 is connected.

In operation, when the operator is about to leave his ear, he opens door 41 and presses in en knob which moves frames 2O and 18 rearwardly so that hooks Q3 catch on bar 1T. I'Ie then turns knob 35 until pins Q9 are not over the portions 32, but are over the holes 31. The door #l1 is then locked, and the alarm is set. Should it then be atten'ipted to move the ear away, shaft 11 will necessarily berotated and cam 13 will ftrike noses and release the hooks from bar 15, so that the frames Q0 and 18 will spring forward, pins 29 entering holes 31. In this manner Contact 50 is moved against 118 thereby closing the circuit and causing ringing of the alarm bell 46.

Inv order to prevent ringing of the bell when the oivner returns and starts his car, he first opens door ll-l and turns knob 35 until pins 29 are over the portions 32. Upon rotation of shaft 11,V the hoo-ks 3 are knocked off bar 17, but frames 1S and 2O are permitted only a limited amount of move-ment until pins 29 strike parts 32 so that Contact 50 does not reach contact 48 and the circuit is not completed.

lhile I have described what I deem to be the most desirable embodiment of my invention,A it is obvious that many of the details may be varied Without in any way departing from the spirit of my invention, and I therefore do not limit myself to the exaxt details of construction herein Set forth nor to anything less than the whole of my invention limited only by the appended Claim.

lWhat I claim as new is:

A device of the class describedv comprising a Cain mounted on the shaft of an automobile, a frame, a carriage mounted on sai-d frame and slidable thereon, a trigger mounted on said carriage and operable by said cam, a Contact mounted onsaid earriage, a stationary Contact mounted on: said frame, a collar mounted on said fra-me and a manipulative member including a plurality of pins for co-aetion with a plural-ity of apertures provided in the collar whereby the Contacts are. rendered operative and inoperativeupon tripping o-f said trigger.

In testimony whereof I have affixedmy signature.

JAMES JQSEPH GRAMMA. 

